pub unsafe extern "C" fn gst_clock_add_observation(
clock: *mut GstClock,
observation_internal: GstClockTime,
observation_external: GstClockTime,
r_squared: *mut c_double,
) -> gboolean
pub unsafe extern "C" fn gst_clock_add_observation(
clock: *mut GstClock,
observation_internal: GstClockTime,
observation_external: GstClockTime,
r_squared: *mut c_double,
) -> gboolean